 Nikolayevsk incident

The was an international conflict in Nikolayevsk-on-Amur in the Russian Far East between Japan and the Far Eastern Republic during the Japanese intervention.The culmination was the execution of imprisoned Japanese prisoners of war and survivors of Japanese residents without trial from 23 to 31 May 1920, which followed after the armed conflict between the guerrillas and the Japanese army from 12 to 15 March 1920 in Nikolaevsk-on-Amur.